Tomography of photon-number resolving continuous-output detectors

Peter C. Humphreys, Benjamin J. Metcalf, Thomas Gerrits, Thomas Hiemstra, Adriana E. Lita, Joshua Nunn, Sae Woo Nam, Animesh Datta, W. Steven Kolthammer, Ian A. Walmsley

Research output: Contribution to journalArticlepeer-review

43 Citations (SciVal)


We report a comprehensive approach to analysing continuous-output photon detectors. We employ principal component analysis to maximize the information extracted from output signals, followed by a novel noise-tolerant parameterized approach to the tomography of photon-number resolving detectors. We further propose a measure for rigorously quantifying a detector's photon-number-resolving capability. Our approach applies to all detectors with continuous-output signals. We illustrate our methods by applying them to experimental data obtained from a transition-edge sensor detector.

Original languageEnglish
Article number103044
JournalNew Journal of Physics
Issue number10
Publication statusPublished - 21 Oct 2015


  • detector tomography
  • quantum optics
  • single photon detectors

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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